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Old 21st April 2013, 12:00 PM   #9671
RCruz is offline RCruz  Switzerland
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Please consider the option for two resistors in parallel for the 47k and the 6k8 on the riaa section.

It would also be good to have provision for two parallel caps on the 15n and the 47n.

I really like the obbligato gold for the 47n.... can it's size be acomodated ?
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Old 21st April 2013, 12:28 PM   #9672
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The 6k8 has one, the 47k will have 5mm extra so another can go under, 15n has a parallel. Other 47n than 1837 or parallel can't fit, it kills the layout. The interstage takes several biggies.
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Old 21st April 2013, 12:29 PM   #9673
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Mount too big caps on bottom like a pontoon party boat they call them here.
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Old 21st April 2013, 05:20 PM   #9674
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Checking parts dimensions now. Needs little bigger diam lytics to can take Silmic II or Muse, want to add 5mm pads for certain resistors to can be Z Foil also. Various other details.
Looks very good, worth wait the finished pcb's Thanks for your time & work Salas.
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Old 21st April 2013, 07:52 PM   #9675
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Originally Posted by Tea-Bag View Post
Mount too big caps on bottom like a pontoon party boat they call them here.
Its trade off between loop area and subjectivity. First stage and passive Riaa should be tightly nit technically. 5mm lead spacing 1% film & foil filter caps are naturals there. PCB is PCB, it has to have some architecture and allows few certain options the most.
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Old 22nd April 2013, 12:34 PM   #9676
RCruz is offline RCruz  Switzerland
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Originally Posted by Salas View Post
The 6k8 has one, the 47k will have 5mm extra so another can go under, 15n has a parallel. Other 47n than 1837 or parallel can't fit, it kills the layout. The interstage takes several biggies.
Cool
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Old 22nd April 2013, 12:41 PM   #9677
RCruz is offline RCruz  Switzerland
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Hi Salas, after all Reichelt 369 are all GR so no go.

They hae 2SK363 BL instead..... no noise figures on the pdf and Yfs seems to be even bigger.... could I use those ?
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Old 22nd April 2013, 03:28 PM   #9678
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They are compatible.
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Old 23rd April 2013, 11:46 AM   #9679
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Old 26th April 2013, 05:55 PM   #9680
RCruz is offline RCruz  Switzerland
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The 2sk363BL came yesterday.... could not resist....

Replaced the 3 x k170 by just one k363 in each side.

K363 are 12mA so according to my calculations I got 40.6dB in the first stage and 58.6dB total Gain.

Both boards powered by the full film BiB and my initial impressions are:

Tighter bass in an overall much more cohesive sound picture presentation.... everything becomes more real... piano sounds much more like it

Leading edges are better defined.... must listen more

Slightly more noisy than the 2 x k170 or the 3 x k170, but noise is less high pitched.
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